PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/29-14:28:10
G02     213.6          52.4               11.3 +/-    1.42      13.8 +/-    1.42  0.060 / 0.090
G06     70.6           76.8                7.3 +/-    0.59       7.4 +/-    0.59  0.070 / 0.080
G12     316.5          32.0                7.4 +/-    1.90      12.4 +/-    1.90  0.070 / 0.110
G17     51.4           37.5                6.1 +/-    0.71       9.3 +/-    0.71  0.050 / 0.110
G19     35.7           50.7                6.1 +/-    0.43       7.7 +/-    0.43  0.080 / 0.290
G24     272.5          41.7                7.5 +/-    1.15      10.7 +/-    1.15  0.090 / 0.270
G28     117.3          23.0                8.0 +/-    1.15      16.3 +/-    1.15  0.030 / 0.030